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nir: Split the flag for lowering of fabs and fneg to source modifiers.

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i915 and r300 have fneg source modifier but not fabs, and doing it in NIR
can save us some backend pain.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14938>
This commit is contained in:
Emma Anholt
2022-02-08 10:07:51 -08:00
parent bd24f418c3
commit f4ee7146f9
2 changed files with 9 additions and 5 deletions
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src/compiler/nir/nir_lower_to_source_mods.c
+3 -1
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@@ -78,8 +78,10 @@ nir_lower_to_source_mods_block(nir_block *block,
case nir_type_float:
if (!(options & nir_lower_float_source_mods))
continue;
if (parent->op != nir_op_fabs && parent->op != nir_op_fneg)
if (!(parent->op == nir_op_fabs && (options & nir_lower_fabs_source_mods)) &&
!(parent->op == nir_op_fneg && (options & nir_lower_fneg_source_mods))) {
continue;
}
break;
case nir_type_int:
if (!(options & nir_lower_int_source_mods))